Last Data Update: April 9, 2020
http://alexwainger.github.io/NBASubstitutionPatterns/
This project uses aggregated on-off data to visualize each team's substitution patterns dating back to the 2012-2013 season. I sporadically run the script to collect the latest data for the current season.
Original r/nba Reddit Post: https://redd.it/5069gr
Article on SBNation's Clippers blog: http://www.clipsnation.com/2017/3/27/15070832/dilemma-staggering-the-clippers-stars-chris-paul-blake-griffin-deandre-jordan